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Finding the Fourth Proportional to 87,174.68, 120,164.58 and 56,944.88

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Solution

The fourth proportional to 87,174.68, 120,164.58 and 56,944.88 is: 78,494.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,174.68 : 120,164.58 = 56,944.88 : x
  2. Step 2: Convert to fraction form
    87,174.68/120,164.58 = 56,944.88/x
  3. Step 3: Cross multiply
    87,174.68x = 120,164.58 × 56,944.88
  4. Step 4: Simplify right side
    87,174.68x = 6,842,757,588.35
  5. Step 5: Solve for x
    x = 6,842,757,588.35/87,174.68
  6. Step 6: Final answer
    x = 78,494.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.